Finding the Fourth Proportional to 77,973.98, 116,940.22 and 21,810.61

Step by Step Solution

1. Step 1: Write the proportion equation
   77,973.98 : 116,940.22 = 21,810.61 : x
2. Step 2: Convert to fraction form
   77,973.98/116,940.22 = 21,810.61/x
3. Step 3: Cross multiply
   77,973.98x = 116,940.22 × 21,810.61
4. Step 4: Simplify right side
   77,973.98x = 2,550,537,184.86
5. Step 5: Solve for x
   x = 2,550,537,184.86/77,973.98
6. Step 6: Final answer
   x = 32,710.11